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Crowcon Tetra:3 

The Tetra 3 portable multi gas monitor can detect and monitor the four most common gases (carbon monoxide, methane, oxygen and hydrogen sulphide), but also an expanded range: ammonia, ozone, sulphur dioxide, H2 filtered CO (for steel plants) and IR carbon dioxide (for safe area use only).


  • Rugged and impact-resistant design provides extra shock and vibration protection – provides protection in the harshest environment

  • Water and dust resistant to IP65 and IP67

  • Can be submerged in water

Effective warning

  • 95dB audible alarm – ensures clear warning facilitating prompt evacuations from hazard zones

  • Vivid red/blue visual alarm

  • Vibrating alarm


  • Proven sensor technology and software operation – Provides reliability you can trust and has the power to cover you for an extended shift

  • Lithium-ion battery provides over 14 hours continuous operation from a single charge with no memory effects

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